ruby IUPC arXiv:1104.3609 P34 3 CPEE preset Christine Ashcreek Christine Ashcreek development Templates.dir syncing_before,syncing_after http://gruppe.wst.univie.ac.at/~mangler/services/timeout.php http://gruppe.wst.univie.ac.at/~mangler/services/timeout-sync.php Task 1 :post 2 data.x += "a1," Resource Synchronisation :post 16 data.x += "a2," Task 3 :post 4 data.x += "a3,"